David R. Helwig

Filings by David R. Helwig span 2 companies, the busiest being Quanta Services, Inc. and Infrasource Services Inc. We count 188 filings; the first trade dates from 24 March 2006 and the latest from 15 May 2008.

No open-market purchase appears, only 169 sales worth €10.0M. Outside the open market, there are 3 share grants and 13 option exercises. Since January 2008: no purchases and 82 sales on the market.

Most recently, on 16 May 2008, the filings show an open-market sale worth €7,664 in Quanta Services, Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.